Distribution of Asteraceae 3. Annuals are those plants that complete their life cycle every year, with only a dormant seed remaining at the end of the growing season. 17 The diagram below illustrates possible evolu-tionary pathways of some species. Important Types. Characters of Asteraceae: Mostly herbs or shrubs or rarely trees; leaves alternate rarely opposite, exstipulate rarely stipulate; inflorescence capitulum or head surrounded by involucre of bracts; ray and disc florets, flower Most species under this genus are herbaceous plants and are native to Southern Mexico. Annuals. Its bright flowers are edible—with a tangy, peppery taste—so it is often grown alongside herbs in kitchen gardens. These are plants that complete their life cycle during a single season. (1) Species A is the common ancestor of all life on Earth. Plant species can be classified based on their life cycle. (2) Species D is more closely related to species E than to species F. (3) Species B is the ancestor of species F. Annual plants complete their entire reproductive life cycle - from germination, through seed production and then on to death - in one season. Marigold (Calendula) is an extremely effective herb for the treatment of skin problems and can be used wherever there is inflammation of the skin, whether due to infection or physical damage; for example, crural ulceration, varicose veins, hemorrhoids, anal fissures, mastitis, sebaceous cysts, impetigo or other inflamed cutaneous lesions. Common Names: African Marigold, French Marigold, Mexican Marigold, Aztec Marigold. Now take a look at the steps involved in an angiosperm’s life cycle. They are normally herbaceous. 1) In the flower’s male parts, the anthers, diploid microsporangium undergo meiosis giving rise to microspores. Which statement is a valid inference based on the information in the diagram? Flowers in which all four of these parts are present are known as complete flowers.. Not all species produce flowers with all four parts; the flowers of plants that don’t are known as incomplete flowers. Perennials, however, persist over many years, with only the top portion of the plant ever dying back and then regrowing at the start of the next season. Geranium, (genus Geranium), any of a group of about 300 species of perennial herbs or shrubs in the family Geraniaceae, native mostly to subtropical southern Africa. ADVERTISEMENTS: In this article we will discuss about:- 1. Calendula officinalis (aka pot marigolds or English marigolds): A native of southern Europe, this “marigold” is actually not a true marigold, but is an attractive companion plant nonetheless. The diploid sporophyte is the dominant phase of the life cycle, while the gametophyte is an inconspicuous, but still-independent, organism. The life cycle of a variety tells you how many seasons it will take for that crop to flower and how long the plant will live. The life cycle of seedless vascular plants is an alternation of generations, where the diploid sporophyte alternates with the haploid gametophyte phase. Marigold is the common English name for plants falling under the genus Tagetes. Most flowers have four main parts: sepals, petals, stamens (the male parts of a flower) and either carpels or a pistil (the female parts of the flower). Classification based on Life Cycle. As kids do, she and her friends have identified one neighbor as particularly weird, a woman who lives in the most decrepit home in … Her life is poverty. Biennials. The Four Main Flower Parts. Examples like corn, rice, wheat, and pulses are annuals plant. Affinities 5. Characters of Asteraceae 2. These are plants that require two years to complete their life cycle. Height : 4 to 85 inches (10 to 220 cm). These haploid microspores will eventually give rise to haploid pollen grains. The genus includes both annual plants and perennial plants. Life Cycle. 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